+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102977 (1999 XV76) Classification: Main-belt Asteroid          SPK-ID: 2102977 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1528150250679814 3.1894e-08   a 2.15084106976976 8.3081e-09 au q 1.82216023777565 6.8411e-08 au i 4.256557247728926 4.0774e-06 deg node 94.17339896082592 4.7852e-05 deg peri 288.2820333532126 5.1449e-05 deg M 286.8775779022641 2.3533e-05 deg tp 2459434.523233404737 (2021-Aug-08.02323340) 7.6372e-05 TDB period 1152.154997178543 3.15 6.6757e-06 1.828e-08 d yr n .3124579599807202 1.8104e-09 deg/d Q 2.479521901763869 9.5777e-09 au   Orbit Determination Parameters    # obs. used (total)      777      data-arc span      8559 days (23.43 yr)      first obs. used      1997-01-09      last obs. used      2020-06-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53706      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:51:26   Additional Information  Earth MOID = .829573 au   Jupiter MOID = 2.97594 au   T_jup = 3.686  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.3   n/a MPO379259   102977 (1999 XV76)          Discovered 1999-Dec-07 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-04 22:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin